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abap-api-tools server client and pool examples
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,113 @@ | ||
| // SPDX-FileCopyrightText: 2014 SAP SE Srdjan Boskovic <[email protected]> | ||
| // | ||
| // SPDX-License-Identifier: Apache-2.0 | ||
|
|
||
| const express = require("express"); | ||
| const ValueHelp = require("abap-value-help").ValueInputHelp; | ||
| const Pool = require("node-rfc").Pool; | ||
|
|
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| // Generic ABAP Value Help API used in prototyping system | ||
| const shlpApi = { | ||
| rfm_domvalues_get: "/COE/RBP_FE_SHLP_DOMVALUES_GET", | ||
| rfm_metadata_get: "/COE/RBP_FE_SHLP_METADATA_GET", | ||
| rfm_search: "/COE/RBP_FE_SHLP_GET", | ||
| }; | ||
|
|
||
| const PORT = 3000; | ||
| const app = express(); | ||
| let pool; | ||
| let valueHelpClient; | ||
| let valueHelp; | ||
|
|
||
| app.use(express.json()); | ||
|
|
||
| // Authenticate and open client connection | ||
| // Closed in /logout or automatically | ||
| app.route("/login").all(async (req, res) => { | ||
| try { | ||
| pool = new Pool( | ||
| Object.keys(req.body) > 0 | ||
| ? req.body | ||
| : { connectionParameters: { dest: "MME" } } | ||
| ); | ||
| valueHelpClient = await pool.acquire(); | ||
| const user = await valueHelpClient.call("BAPI_USER_GET_DETAIL", { | ||
| USERNAME: req.body.username || "DEMO", | ||
| }); | ||
| // User parameters (SU3) passed to Value Helps handler | ||
| // make user defaults appear in Value Help web forms just like in SAPGUI | ||
| valueHelp = new ValueHelp(valueHelpClient, shlpApi, user.PARAMETER); | ||
| res.json("connected"); | ||
| } catch (ex) { | ||
| res.json(ex.message); | ||
| } | ||
| }); | ||
|
|
||
| // Fixed domain values | ||
| app.route("/fieldvalues").all(async (req, res) => { | ||
| if (!pool) { | ||
| return res.json("Do the login first"); | ||
| } | ||
| const result = await valueHelp.getDomainValues( | ||
| Object.keys(req.body) > 0 ? req.body : "RET_TYPE" | ||
| ); | ||
| //res.json(result); | ||
| res.header("Content-Type", "application/json"); | ||
| res.send(JSON.stringify(result, null, 4)); | ||
| }); | ||
|
|
||
| // Complex/elementary Value Help descriptor (SH type) | ||
| // used to dynamically build the frontend Value Input dialog | ||
| app.route("/helpselect").all(async (req, res) => { | ||
| if (!pool) { | ||
| return res.json("Do the login first"); | ||
| } | ||
| const descriptor = await valueHelp.getShlpDescriptor( | ||
| Object.keys(req.body) > 0 ? req.body : { type: "SH", name: "CC_VBELN" } | ||
| ); | ||
| //res.json(descriptor); | ||
| res.header("Content-Type", "application/json"); | ||
| res.send(JSON.stringify(descriptor, null, 4)); | ||
| }); | ||
|
|
||
| // Run the search using selection parameters from Value Input Dialog | ||
| app.route("/search").all(async (req, res) => { | ||
| if (!pool) { | ||
| return res.json("Do the login first"); | ||
| } | ||
|
|
||
| const shlpId = req.body.shlpId | ||
| ? req.body.shlpId | ||
| : { type: "SH", name: "VMVAA" }; | ||
|
|
||
| const selection = req.body.selection | ||
| ? req.body.selection | ||
| : [ | ||
| //["AUART", "I", "EQ", "OR", ""], | ||
| ["BSTKD", "I", "EQ", "212345678", ""], | ||
| ["VKORG", "I", "EQ", "1000", ""], | ||
| ]; | ||
|
|
||
| const result = await valueHelp.search(shlpId, selection); | ||
|
|
||
| //res.json(result); | ||
| res.header("Content-Type", "application/json"); | ||
| res.send(JSON.stringify(result, null, 4)); | ||
| }); | ||
|
|
||
| // Close the connection (optional) | ||
| app.route("/logout").all(async (req, res) => { | ||
| if (pool && valueHelpClient.alive) await pool.release(valueHelpClient); | ||
| res.json("disconnected"); | ||
| }); | ||
|
|
||
| app.listen(PORT, () => | ||
| console.log( | ||
| "Value Helps server ready:", | ||
| `\nhttp://localhost:${PORT}/login`, | ||
| `\nhttp://localhost:${PORT}/fieldvalues`, | ||
| `\nhttp://localhost:${PORT}/helpselect`, | ||
| `\nhttp://localhost:${PORT}/search`, | ||
| `\nhttp://localhost:${PORT}/logout` | ||
| ) | ||
| ); |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
|
|
@@ -26,6 +26,5 @@ export { | |
| SearchResultHeaderType, | ||
| SearchResultLineType, | ||
| SearchResultType, | ||
| Client, | ||
| log, | ||
| }; | ||