How place sloped text along a bended arrow

Question

In the following plot

\documentclass{standalone}
\usepackage[utf8]{inputenc}
\usepackage{tikz}
\usetikzlibrary{calc}
\usetikzlibrary{shapes.arrows,shapes}

\begin{document}
\begin{tikzpicture}
    
    \node[draw,ultra thick,above right,] (USR) at (1,7) {User};
    \node[draw,ultra thick,below] (MNT) at (-1,-2) {Management};
    \draw[-latex,line width=1.mm,teal] (MNT.north) to[ out=120, in=210,] (USR.west);
    \draw[-latex,line width=1.mm,teal] (USR.east) to[ out=-30, in=50,] (MNT.east);
    %---
    \node[] (get) at (-1,4) {\large{GET}};
    % \node[below,yshift=-2mm] at (get) {\large{SET}};
    \node[] at (2,4) {\large{RESPONSE}};
    
\end{tikzpicture}
\end{document}

I cannot make the text GET, and RESPONSE be placed along the line (sloped). I have tested options pos=0.7, near end, or near start do not work. Finally, the words appear at coordinates to show this example.

Answer 1

\documentclass{standalone}
\usepackage[utf8]{inputenc}
\usepackage{tikz}
\usetikzlibrary{calc}
\usetikzlibrary{shapes.arrows,shapes}

\begin{document}
\begin{tikzpicture}
    
    \node[draw,ultra thick,above right,] (USR) at (1,7) {User};
    \node[draw,ultra thick,below] (MNT) at (-1,-2) {Management};
    \draw[-latex,line width=1.mm,teal] (MNT.north) to[ out=120, in=210,]node[above,sloped] (get)  {\large{GET}} (USR.west) ;
    \draw[-latex,line width=1.mm,teal] (USR.east) to[ out=-30, in=50,] (MNT.east);
    %---
    % \node[above,sloped] (get) at (-1,4) {\large{GET}};
    % \node[below,yshift=-2mm] at (get) {\large{SET}};
    % \node[] at (2,4) {\large{RESPONSE}};
    
\end{tikzpicture}
\end{document}

OR

\documentclass{standalone}
\usepackage[utf8]{inputenc}
\usepackage{tikz}
\usetikzlibrary{calc}
\usetikzlibrary{shapes.arrows,shapes,decorations.text}

\begin{document}
\begin{tikzpicture}
    
    \node[draw,ultra thick,above right,] (USR) at (1,7) {User};
    \node[draw,ultra thick,below] (MNT) at (-1,-2) {Management};
    \draw[-latex,line width=1.mm,teal] (MNT.north) to[ out=120, in=210,]node[above,sloped] (get)  {\large{GET}} (USR.west) ;

    \def\myshift#1{\raisebox{1ex}}
    \draw[-latex,line width=1.mm,teal, postaction={decorate,decoration={text along path,text align=center,text={
    |\myshift|some bent text here}}}] (USR.east) to[ out=-30, in=50,] (MNT.east);
    %---
    % \node[above,sloped] (get) at (-1,4) {\large{GET}};
    % \node[below,yshift=-2mm] at (get) {\large{SET}};
    % \node[] at (2,4) {\large{RESPONSE}};
    
\end{tikzpicture}
\end{document}

Answer 2

If you want the text to follow the curve, you have to use the decorations.text library and some tricks, like in the following:

\documentclass[tikz,border=3.14mm]{standalone}
\usetikzlibrary{decorations.text}

\begin{document}
    \begin{tikzpicture}

    \node[draw,ultra thick,above right,] (USR) at (1,7) {User};
    \node[draw,ultra thick,below] (MNT) at (-1,-2) {Management};
    
    \def\shft#1{\raisebox{1ex}} % Vertical shift to be used as an argument in the path decoration
    
    \draw[-latex,line width=1.mm,teal,postaction={decorate,decoration={text along path,text align=center,text={|\large\shft|GET SET}}}] (MNT.north) to[ out=120, in=210,] (USR.west);
    
    \draw[-latex,line width=1.mm,teal,postaction={decorate,decoration={text along path,text align=center,text={|\large\shft|RESPONSE}}}] (USR.east) to[ out=-30, in=50,] (MNT.east);
    \end{tikzpicture}
\end{document}