6 hours on-line nucleic acid testing map, cheer for Xi'an!

At 5 pm on December 21, Xu Changpeng, an Internet back-end engineer in Xi'an, posted a circle of friends:

" needs to be transferred, map of nucleic acid detection points. " is a poster with a QR code. At the bottom is a powerful red slogan-"Come on, Xi'an."

The "Xi'an Nucleic Acid Detection Map" application developed by several Internet engineers was officially launched.

In the next 48 hours, 1357 small blue dots (nucleic acid detection points) were lit on this map of Xi'an, which were used by more than 35,000 people.

Xu Changpeng’s problem has become: how to develop and launch a small program version in the shortest time?

December 18, 14:00

"Let’s do something"

"To go to work next Monday, everyone needs a 48-hour nucleic acid negative certificate to enter the office building."

At two o'clock in the afternoon on Saturday (December 18), Xu Changpeng, who was resting at home, received a notice from the government. He had a foreboding that the epidemic in Xi'an was getting worse this round.

Overnight, the demand for nucleic acids in Xi'an City surged. In the phone and WeChat, friends and family are asking: Where to do nucleic acid? Where is it close? Where are there few people?

In Xi'an, there are two types of nucleic acid testing sites, one is a testing station that moves around the community, and the other is a hospital that can provide 24-hour testing services.

There is relevant nucleic acid detection point information on the government affairs applet, but some have not collected temporary nucleic acid detection points in time, or there is some information on mobile nucleic acid detection points, but there is only a text list, which is not as intuitive as a map.

Under the tense and flustered atmosphere, an idea was brewing in Xu Changpeng's mind-can you summarize the information of all nucleic acid detection points on a map, so that everyone can find the nearest detection point?

December 21,

"Xi'an Nucleic Acid Testing Map" is officially launched

From December 20 to 21, the number of confirmed cases in Xi’an continued to increase, the control of the epidemic became more stringent, and nucleic acid testing for all employees was officially launched.

Xu Changpeng could not sit still, "must act immediately."

He and five other colleagues, some are responsible for collecting data, some are responsible for finding technical documents, and some are responsible for development...Everyone has no working experience in map software. In order to develop this application, almost all started from scratch.

With the concerted efforts of everyone, the H5 application of "Xi'an Nucleic Acid Detection Map" was officially launched at 16:32 on the 21st.

To facilitate contact, Xu Changpeng left his WeChat contact information on the map interface. "Although it looks rough, it works," Xu Changpeng said.

Soon after the "Xi'an Nucleic Acid Detection Map" was launched, the feedback from the citizens flew like snowflakes: Some people left a message saying that mobile detection points were set up in some places, but they were not displayed on the system; some people wanted to see more detection points. Multi-information, such as inspection time, number of people, queuing status, etc...

After getting this feedback, Xu Changpeng and his colleagues will manually update the information to the application.

To 23, "Xi'an nucleic acid detection map" has real-time collection of at 1357 the exact position of the nucleic acid detection point . On a map of Xi'an city, blue markers are densely distributed. Each marker is a nucleic acid detection point. After clicking on the marker, you can see the address information of the nucleic acid detection point.

In order to better help citizens find detection points, local media in Xi'an reported on the "Xi'an Nucleic Acid Detection Map". The relevant content was published on Weibo and quickly rushed into the hot search list.

Background data shows that on the 23rd, used the map service . The small blue dots lit up on the map bring convenience and warmth to everyone.

December 23,

6 hours, develop a small program

Xu Changpeng felt that his cell phone was about to explode. Volunteers, media, developers... all kinds of information flooded in.

Since the H5 application is not suitable for repeated opening, it is inconvenient to search, and more and more people report that the map cannot be searched, and it can't be used.

At 16:54 on the 23rd, Changpeng Xu posted another circle of friends: At this moment we are focusing on the development of the small program version...

As a senior back-end engineer, Xu Changpeng has been active in the cloud technology community for many years. Last year, he also served as the city ambassador for Tencent Cloud Development in Xi'an. his own experience, he quickly thought of a way to quickly build a WeChat applet-161c9bfee103a8 Tencent Cloud Micro took the low-code product.

Tencent Cloud Wi-Fi’s low-code capabilities such as visual drag-and-drop, custom components, and form engines are particularly suitable for "light applications" such as the rapid construction of small programs under urgent needs.

In addition, considering that the number of users may explode, the elastic scalability of cloud development and micro-building is also sufficient to support high-traffic, high-concurrency flood peak scenarios, and avoid situations where it cannot be opened.

Xu Changpeng immediately found the person in charge of Tencent Cloud. After the requirements were put forward, the two parties hit it off and quickly pulled a group of work.

The next development process, like pressing the "fast forward button"——

• Architect enters the group: Gives a technical plan for the rapid development of small programs;
• Products and operations entered the group, and product documentation was given;
• The development colleagues entered the group and brought interface information;
• Apply for the mini program number, call the template, and open up the interface;
  ……

" that provides a nucleic acid test map for Xi'an citizens was officially launched on 161c9bfee104f5!

December 24,

More functions are online...

In the early morning of the 24th, the detection points were classified, and the mobile detection points (red) and fixed detection points (blue) were marked in different colors on the map.

At the same time, the number of nucleic acid detection points marked on the map is also increasing, with more than 80 newly added by the 24th.

The function that everyone most hopes to add is to allow users to submit detection point information on the mini program to form a joint effort for the whole people, which requires the function of data collection and management. Changpeng Xu and his colleagues are considering using the data connector capabilities of Tencent Cloud Weipa and Tencent Document

At 1 o'clock on the 24th, nearly 12 hours after the Mini Program was , the number of visits reached 161c9bfee105a8 7000 . More and more citizens of Xi'an are using it to find nucleic acid detection points nearby.

At present, Xi'an is undergoing strict epidemic control regulations, and non-essential places are temporarily closed. The city’s communities and units implement closed management, and each family has one person to purchase daily necessities every two days.

The new control requirements have reduced population movements and also bought some time for product development. The "Yiqinbao" applet needs to add more functions in a short period of time to make it easier for everyone to use.

For the prevention and control of the epidemic in Xi'an, there is still a "big test": the 2022 postgraduate enrollment examination in Shaanxi Province will be held from December 25th to 27th. There are about 135,000 candidates taking the test in Xi'an this year. By then, large-scale nucleic acid testing will be imperative.

"I hope that after the new function is launched, it can help everyone find suitable detection points efficiently, and provide more assistance for epidemic prevention and control, which can be regarded as a little contribution to epidemic prevention and control." Xu Changpeng said.

Scan the 👇 mini program and share it with friends in Xi’an