How does WeChat Mini Programs develop the function of moments?

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First, the analysis of development function: 1. Each piece of content is displayed in a list.

two。 Click to show the details of the content

3. Comment function

Second, the database is set up here with the list and details, we use one table to implement, and the comments use the second table. Total 2 tables

1.post table

We can directly import a JSON like this, but because the information on the front page is operated in this way, the data are all exactly the same. This time, we use cloud functions to collect data to the database on a regular basis.

two。 Collect data

Data structure address:

Var url = 'https://apiquan.ithome.com/api/post?categoryid=0&type=0&orderTime=1526981875455&visistCount=&pageLength='

If you import manually, you can import this data structure:

{"id": 266716, "t": "can ordinary Unicom card be transferred to rice noodle card?" , "c": "[chats]", "cn": "talk freely", "uid": 100058, "un": "China Rocket Army", "rn": "Nokia Lumia 930,930," pt": "/ Date (1527057744773) /", "rt": "/ Date (1527060538403) /", "vc": 0, "rc": 17, "IC": false, "IH": false, "ot": "/ Date (- 6213556800000) /"} Cloud function to obtain URL data code:

Function onRequest (request, response, modules) {var http = modules.oHttp;var url = 'https://apiquan.ithome.com/api/post?categoryid=0&type=0&orderTime=1526981875455&visistCount=&pageLength='http(url, function (error, res, body) {response.end (body);});} Click the test to see the result

In this way, you can get the target URL data. How to insert into the database, see the following code:

Db.insert ({"table": "XXX", / / table name "data": {"a": "XXXX", "b": "XXXX"} / / data to be updated in the format of JSON}, function (err,data) {/ / callback function}). If you insert a single row of data in batch, you can use the following code:

Function onRequest (request, response, modules) {var http = modules.oHttp;var db = modules.oData;var url = 'https://apiquan.ithome.com/api/post?categoryid=0&type=0&orderTime=1526981875455&visistCount=&pageLength='http(url, function (error, res, body) {/ / result is converted to object type var results = JSON.parse (body); var arr = [] / update data for (var i in results) {newdata = {"method": "post", "path": "/ 1/classes/post", "body": results [I]}; arr.push (newdata)} / / get array objects var bat = modules.oBatch;// batch operation bat.exec ({"data": {"requests": arr}}, function (err, data) {/ / callback function response.end (data); return;}) Response.end (JSON.stringify (results.length));});} click test

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